OK, this is every car (that I can remember) I used to get my score, hope its useful to you
BEGINNER HALL:
Sunday Cup : Toyota Yaris - 200
FF Challenge : Mini One - 200
FR Challenge : Ginetta G4 (ballast) 200
MR Challenge : MGF (NA stage 1? I think) -200
4WD Challenge : Toyota Celica (An old one, 85 mybe) - 200
Light Weight K Cup : Honda Life Step Van (NOS) - 200
Spider & Roadster : Corvette Convetible '54 (Custom Gearbox)- 200
Sport Truck Race : Dodge RAM - 200
PROFESSIONAL HALL:
Clubman Cup : Dodge RAM (yeah I know) 200
Tuning Car Grand Prix : Amuse S2000 R1 200
Race of NA Sports : Opel Speedster (cant recall mods) - 200
Race of Turbo Sports : Opel Speedster Turbo (Turbo stage 2) -200
Boxer Spirit : Subaru Legacy B4 Blitzen - 200
World Classic Car Series : VW Karmann Ghia (N2/N3, NA stage 1) 200
World Compact Car Race : Suzuki cappuccino (N3) - 200
Supercar Festival : Callaway C12 (put NA2 change to NA1) 200
Gran Turismo World Championship : Nissan R390 GT1 (used, R1) - 200
EXTREME HALL:
Gran Turismo All Stars : Ford GT LM spec-II - 200
Dream Car Championship : AMG Merc 190 touring car - 200
Polyphony Digital Cup : Dodge RAM (racing Trans) - 200
Like The Wind : TVR Speed 12 (N3) - 200
Formula GT World : Audi R8 (R1) - 200
Real Circuit Tours : Nissan R390 Gt1 (R1) - 200
Premium Sports Lounge : BMW M3 GTR (ballast) - 200
ENDURANCE HALL:
Grand Valley 300km: Audi S4 (ballast, N2) - 200
Laguna Seca 200 mile: Camaro Iroc-Z - 200
Roadster 4 Hours Endurance : MX-5 89 (used, N1, ballast) - 200
Tokyo R246 300km : BMW 320i touring (NA stage 2) - 200
Super Speedway 150 Miles : Mazda 787B (used, R1, ballast) - 200
Nurburgring 24 Hours Endurance : BMW 320i touring (R1, ballast) - 200
Nurburgring 4 Hours Endurance : ASL Garaiya (N3) - 200
Motegi 8 Hours Endurance : Nissan 240RS - 200
Tsukuba 9 Hours Endurance : Nissan 240RS - 200
Fuji 1000km : R390 Gt1 (R1, used) - 200
Sarthe Circuit 24 Hours I : Nissan R390 Gt1 (R1) - 200
Sarthe Circuit 24 Hours II : Nissan R390 Gt1 (used, R1) - 200
Infineon World Sport Car Trophy : Nissan R390 Gt1 (used, R1) - 200
El Captain 200 Miles : BMW M3 200
New York 200 Miles : Honda HSC (N1) 200
JAPANESE HALL:
Japanese Championship : ASL Garaiya - 200
Japanese GT Championship : Suzuki GSX/4 (R1) 200
Japanese 70's Classic : Skyline GT-R KCGP whatever 70 - 200
Japanese 80's Festival : A Celica of some sort (cant remember)
Japanese 90's Challenge : Skyline GTS25 R32 '95? (used, N2)
Japanese Compact Car Cup : Suzuki Cappuchino (N1, ballast) - 200
EUROPEAN HALL:
European Championship :
British GT Cup : Jaguar S-type R - 200
British Light Weight : Triumph Spitfire (Weight stage 1) - 200
German Touring Car Championship : AMG Merc Evo touring (S2) 200
Italian Festival : Fiat Barchetta - 200
French Championship : Alpine A310 (N1, ballast) - 200
European Classic Car Championship : VW Karmann Ghia (N2, NA stage 1) - 200
European Hot Hatch Car Championship : BMW 120i - 200
1000 Miles : VW Karmann Ghia - (N2, NA Stage 1, NOS) - 200
Schwarzwald Liga A : BMW 120i - 200
Schwarzwald Liga B : Audi S4 (N3, ballast) - 200
AMERICAN HALL:
American Championship : Chapparal 2D (R1, ballast) - 200
Stars and Stripes : Lexus SC300 (used) - 200
American Muscle Car Championship : Ford RS200 road - 200
Classic Muscle Car Championship : Corvette Convertible 54 200
SPECIAL CONDITION HALL:
Various cars here, I cant remember which is for which race, but I did use the RAM for Ice Arena.
Lancer rally car 83, Nissan 240RS rally car, Mitsubishi 3000GT SR(used), Dodge RAM, Nissan Bluebird rally car. 200 all races.
Tsukuba wet cant remember but pretty much anything works here anyway
One-Make Races
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For one model races I used N1s and 200 ballast for all of them.
For races that could have a used version in (Audi TT) I used the second hand version.
Problem manufacturers (either very hard to win, or require numerous line-up changes for high points)
Mini Mini One (vs 3 Cooper S) 200
Mercedes Silver Arrow AMG 190e evo road (SLR started behind) 200
Mercedes SL 300SL (S3) (600 started at back) 200
Mazda RX RX-7 85 - 200
Races that need oil wear for 200 -
Alpine race (A310, 7000 miles)
S7 Club - (S7, N2, 5000 miles)
VW Gti Cup - (polo gti, N1, 5000 miles, ballast)
BMW 1-series - (120i, 5000 miles vs 4x120d)
Lotus Classics - (Elan, 7000 miles vs 4xEuropa)
RX-8 - (RX-8 type E, 3000 miles)
Suzuki K-car (Alto Lapin Turbo/NOS/Ballast/N1/9000 miles)
the non-200 races are:-
MG Festival - 179 (MGF, used, N1, Ballast)
Triumph Spitfire Cup - 159 (Spitfire, 10000 miles, N1, ballast)
Crossfire Trophy - 182 (9000 miles, ballast, N1)
2HP-2CV - 134 - (10000 miles, ballast, N1)
Megane Cup - 169 (9000 miles, ballast, N1)
Audi A3 Cup - 182 (9000 miles, ballast, N1)
Daihatsu Copen Challenge - 166 (9000 miles, ballast, N1)
Isuzu Sports - 179 (Coupe, used, ballast, N1, NOS)
Subaru 360 race - 142 (10000 miles, ballast, N1, NOS)
Hyundai Sports - 176 (coupe/tiburion, 9000 miles, ballast, N1)
Midget race - 153 (used, N1, ballast, NOS)